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authorLinus Torvalds <torvalds@linux-foundation.org>2017-05-02 01:46:13 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2017-05-02 01:46:13 +0300
commit3cb6653552ddd0b5670a445032ecb9f162e950ff (patch)
tree03d640726ec14024c58a4eaf6b8fcd97a4c880ab /Documentation/devicetree
parent2dbf3d5c32bf905c2575e5759f2ab6262ec9c6c5 (diff)
parent216646e4d82e847791f0ba66c439dedd36cb119f (diff)
downloadlinux-3cb6653552ddd0b5670a445032ecb9f162e950ff.tar.xz
Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq updates from Thomas Gleixner: "Nothing exciting from the irq side for this merge window: - a new driver for a Mediatek SoC - ACPI support for ARM GICV3 - support for shared nested interrupts - the usual pile of fixes and updates all over te place" * 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (28 commits) irqchip/mbigen: Fix return value check in mbigen_device_probe() irqchip/mips-gic: Replace static map with dynamic irqchip/mips-gic: Remove device IRQ domain irqchip/mips-gic: Separate IPI reservation & usage tracking genirq: Use irqd_get_trigger_type to compare the trigger type for shared IRQs genirq: Use cpumask_available() for check of cpumask variable cpumask: Add helper cpumask_available() irqchip/irq-imx-gpcv2: Clear OF_POPULATED flag irqchip/atmel-aic5: Handle suspend to RAM irqchip: Add Mediatek mtk-cirq driver dt-bindings: mtk-cirq: Add binding document irqchip/gic-v3-its: Add IORT hook for platform MSI support irqchip/mbigen: Add ACPI support irqchip/mbigen: Introduce mbigen_of_create_domain() irqchip/mbigen: Drop module owner platform-msi: Make platform_msi_create_device_domain() ACPI aware irqchip/gicv3-its: platform-msi: Scan MADT to create platform msi domain irqchip/gicv3-its: platform-msi: Refactor its_pmsi_init() to prepare for ACPI irqchip/gicv3-its: platform-msi: Refactor its_pmsi_prepare() irqchip/gic-v3-its: Keep the include header files in alphabetic order ...
Diffstat (limited to 'Documentation/devicetree')
-rw-r--r--Documentation/devicetree/bindings/interrupt-controller/faraday,ftintc010.txt (renamed from Documentation/devicetree/bindings/interrupt-controller/cortina,gemini-interrupt-controller.txt)11
-rw-r--r--Documentation/devicetree/bindings/interrupt-controller/mediatek,cirq.txt35
-rw-r--r--Documentation/devicetree/bindings/interrupt-controller/mediatek,sysirq.txt11
3 files changed, 49 insertions, 8 deletions
diff --git a/Documentation/devicetree/bindings/interrupt-controller/cortina,gemini-interrupt-controller.txt b/Documentation/devicetree/bindings/interrupt-controller/faraday,ftintc010.txt
index 97c1167fa533..24428d47f487 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/cortina,gemini-interrupt-controller.txt
+++ b/Documentation/devicetree/bindings/interrupt-controller/faraday,ftintc010.txt
@@ -1,9 +1,12 @@
-* Cortina Systems Gemini interrupt controller
+* Faraday Technologt FTINTC010 interrupt controller
-This interrupt controller is found on the Gemini SoCs.
+This interrupt controller is a stock IP block from Faraday Technology found
+in the Gemini SoCs and other designs.
Required properties:
-- compatible: must be "cortina,gemini-interrupt-controller"
+- compatible: must be one of
+ "faraday,ftintc010"
+ "cortina,gemini-interrupt-controller" (deprecated)
- reg: The register bank for the interrupt controller.
- interrupt-controller: Identifies the node as an interrupt controller
- #interrupt-cells: The number of cells to define the interrupts.
@@ -15,7 +18,7 @@ Required properties:
Example:
interrupt-controller@48000000 {
- compatible = "cortina,gemini-interrupt-controller";
+ compatible = "faraday,ftintc010"
reg = <0x48000000 0x1000>;
interrupt-controller;
#interrupt-cells = <2>;
diff --git a/Documentation/devicetree/bindings/interrupt-controller/mediatek,cirq.txt b/Documentation/devicetree/bindings/interrupt-controller/mediatek,cirq.txt
new file mode 100644
index 000000000000..a7efdbc3de5b
--- /dev/null
+++ b/Documentation/devicetree/bindings/interrupt-controller/mediatek,cirq.txt
@@ -0,0 +1,35 @@
+* Mediatek 27xx cirq
+
+In Mediatek SOCs, the CIRQ is a low power interrupt controller designed to
+work outside MCUSYS which comprises with Cortex-Ax cores,CCI and GIC.
+The external interrupts (outside MCUSYS) will feed through CIRQ and connect
+to GIC in MCUSYS. When CIRQ is enabled, it will record the edge-sensitive
+interrupts and generate a pulse signal to parent interrupt controller when
+flush command is executed. With CIRQ, MCUSYS can be completely turned off
+to improve the system power consumption without losing interrupts.
+
+Required properties:
+- compatible: should be one of
+ - "mediatek,mt2701-cirq" for mt2701 CIRQ
+ - "mediatek,mt8135-cirq" for mt8135 CIRQ
+ - "mediatek,mt8173-cirq" for mt8173 CIRQ
+ and "mediatek,cirq" as a fallback.
+- interrupt-controller : Identifies the node as an interrupt controller.
+- #interrupt-cells : Use the same format as specified by GIC in arm,gic.txt.
+- interrupt-parent: phandle of irq parent for cirq. The parent must
+ use the same interrupt-cells format as GIC.
+- reg: Physical base address of the cirq registers and length of memory
+ mapped region.
+- mediatek,ext-irq-range: Identifies external irq number range in different
+ SOCs.
+
+Example:
+ cirq: interrupt-controller@10204000 {
+ compatible = "mediatek,mt2701-cirq",
+ "mediatek,mtk-cirq";
+ interrupt-controller;
+ #interrupt-cells = <3>;
+ interrupt-parent = <&sysirq>;
+ reg = <0 0x10204000 0 0x400>;
+ mediatek,ext-irq-start = <32 200>;
+ };
diff --git a/Documentation/devicetree/bindings/interrupt-controller/mediatek,sysirq.txt b/Documentation/devicetree/bindings/interrupt-controller/mediatek,sysirq.txt
index 9d1d72c65489..a89c03bb1a81 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/mediatek,sysirq.txt
+++ b/Documentation/devicetree/bindings/interrupt-controller/mediatek,sysirq.txt
@@ -21,13 +21,16 @@ Required properties:
- interrupt-parent: phandle of irq parent for sysirq. The parent must
use the same interrupt-cells format as GIC.
- reg: Physical base address of the intpol registers and length of memory
- mapped region.
+ mapped region. Could be multiple bases here. Ex: mt6797 needs 2 reg, others
+ need 1.
Example:
- sysirq: interrupt-controller@10200100 {
- compatible = "mediatek,mt6589-sysirq", "mediatek,mt6577-sysirq";
+ sysirq: intpol-controller@10200620 {
+ compatible = "mediatek,mt6797-sysirq",
+ "mediatek,mt6577-sysirq";
interrupt-controller;
#interrupt-cells = <3>;
interrupt-parent = <&gic>;
- reg = <0 0x10200100 0 0x1c>;
+ reg = <0 0x10220620 0 0x20>,
+ <0 0x10220690 0 0x10>;
};